Optoelectronic Modelling, Circuit Design and Modulation for Polymer-Light Emitting Diodes for Visible Light Communication Systems

Andrew Burton, Alessandro Minotto, Paul Anthony Haigh, Zabih Ghassemlooy, Hoa Le Minh, Franco Cacialli, Izzat Darwazeh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)
19 Downloads (Pure)

Abstract

This paper investigates the use of organic polymer light emitting diodes (PLEDs) for the use in visible light communications (VLC). We prepared blue and green emitting PLEDs using commercial light-emitting polymers, and then characterised the device emission (spectrum and power), and extracted their circuit parameters for their electrical equivalent model for driving with small signals. In addition, we characterised the bandwidth ( Bmod ) of the devices over a period of continuous driving (∼ 4 h) and found that for the blue PLEDs the Bmod decreased from an initial 750 kHz to a steady state of ∼250 kHz. The green-emitting devices were found to benefit from an extended Bmod of ∼1.5 MHz at the beginning of the test, which then stabilised to ∼850 kHz. Furthermore, with the addition of a first order RC filter we show that, the steady state Bmod of the blue PLED cane be increased by a factor of ∼3, thus allowing > 1 Mbps non-return to zero on-off keying (NRZ OOK) data transmission in a complete VLC system.
Original languageEnglish
Title of host publication2019 26th International Conference on Telecommunications (ICT)
Subtitle of host publicationHa Noi, Vietnam, April 8-10 2019
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages55-59
ISBN (Electronic)9781728102733, 9781728102726
ISBN (Print)9781728102740
DOIs
Publication statusPublished - Apr 2019
Event2019 26th International Conference on Telecommunications (ICT) - Hanoi, Vietnam
Duration: 8 Apr 201910 Apr 2019

Conference

Conference2019 26th International Conference on Telecommunications (ICT)
Period8/04/1910/04/19

Fingerprint Dive into the research topics of 'Optoelectronic Modelling, Circuit Design and Modulation for Polymer-Light Emitting Diodes for Visible Light Communication Systems'. Together they form a unique fingerprint.

Cite this